Re: [PATCH v6 1/3] usb: Add Xen pvUSB protocol description

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On 15.10.21 10:52, Juergen Gross wrote:
On 15.10.21 10:14, Greg KH wrote:
On Fri, Oct 15, 2021 at 10:07:35AM +0200, Juergen Gross wrote:
On 13.10.21 14:01, Greg KH wrote:
On Wed, Oct 13, 2021 at 09:52:05AM +0200, Juergen Gross wrote:
Add the definition of pvUSB protocol used between the pvUSB frontend in a Xen domU and the pvUSB backend in a Xen driver domain (usually Dom0).

This header was originally provided by Fujitsu for Xen based on Linux
2.6.18.

Changes are:
- adapt to Linux kernel style guide
- use Xen namespace
- add lots of comments
- don't use kernel internal defines

Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
---
   include/xen/interface/io/usbif.h | 421 +++++++++++++++++++++++++++++++
   1 file changed, 421 insertions(+)
   create mode 100644 include/xen/interface/io/usbif.h

diff --git a/include/xen/interface/io/usbif.h b/include/xen/interface/io/usbif.h
new file mode 100644
index 000000000000..9494b1c9be99
--- /dev/null
+++ b/include/xen/interface/io/usbif.h
@@ -0,0 +1,421 @@
+/*
+ * usbif.h
+ *
+ * USB I/O interface for Xen guest OSes.
+ *
+ * Copyright (C) 2009, FUJITSU LABORATORIES LTD.
+ * Author: Noboru Iwamatsu <n_iwamatsu@xxxxxxxxxxxxxx>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */

Please use a SPDX line and not license "boilerplate" text like this :(

Okay. Is this your only concern for this series? Or is it a blocking
point for you before looking into it in more detail?

It was an easy thing to see at first glance that you hadn't taken my
previous comment about this seriously :(

I'm sorry for that. This was clearly an oversight from me.

BTW, when checking which SPDX tag to use I discovered that most of the
Xen header files under include/xen/interface have been tagged as GPL-2.0
by a patch from you.

Said patch (commit b24413180f5600) stated that there was no license
information found in those files, but they all clearly had a verbatim
copy of the MIT license in them.

They didn't. No idea where I was seeing that, sorry for that wrong
statement. Nevertheless the GPL-2.0 tag is wrong for those files.

Clearly need more coffee. :-(

I'll send another patch fixing those SPDX tags.


Juergen

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